English: NASA Administrator Charlie Bolden (left) and Stennis Space Center Director Patrick Scheuermann view a test firing of the first Aerojet AJ26 flight engine. Once flight acceptance is achieved, the engine will power the first stage of Orbital's Taurus II space launch vehicle on commercial cargo missions to the International Space Station. NASA has partnered with Orbital to provide eight cargo missions to the space station, with the first scheduled for early 2012.